CN207703045U - Heat exchanger and gas-fired water heater - Google Patents

Abstract

The utility model discloses a kind of heat exchanger and gas-fired water heaters, are related to heat exchanger field.Including coil pipe part and heat exchange walls, coil pipe part includes indent runner bool and two wall surface connectors, two wall surface connectors are connected to the both ends of indent runner bool, indent runner bool is recessed to the side far from heat exchange walls, coil pipe part is connect by two wall surface interconnecting pieces with heat exchange walls, and a fluid course is formed between indent runner bool and heat exchange walls, cold fluid to flow through fluid course is directly contacted with heat exchange walls, heat exchanger provided by the utility model, the heat converter structure is simple, production cost is low, and there is higher heat exchanger effectiveness.Gas-fired water heater provided by the utility model, the device are worked using heat exchanger to complete heat exchange, and simple in structure, production cost is low, and has higher heat exchanger effectiveness.

Description

Heat exchanger and gas-fired water heater

Technical field

The utility model is related to heat exchanger fields, in particular to heat exchanger and gas-fired water heater.

Background technology

Heat exchanger (is also known as heat exchanger or heat-exchange apparatus), is that the partial heat of hot fluid is passed to cold fluid Equipment, also known as heat exchanger or heat-exchange apparatus.Heat exchanger is chemical industry, oil, power, food and other many industrial departments Common apparatus, occupy an important position in production.In Chemical Manufacture heat exchanger can be used as heater, cooler, condenser, Evaporator and reboiler etc., are more widely applied.

Currently, the heat friendship of the evaporator and condenser of air-conditioning system, the fan coil of central air conditioner system, gas heater Copper pipe is generally used to be welded in the structure type of heat exchanger wall surface in the heat transmission equipments such as parallel operation, also, copper pipe is in heat exchanger Pipe or flat tube, since that there are area of surface-heat transfer is small for round pipe fitting, in addition, heat exchange approach be heat exchanger wall surface, solder with And the longer heat exchange approach of copper pipe, and there are larger thermal resistances, limit the further promotion of heat exchanger heat exchange efficiency, and And heat exchanger materials are wasted, increase heat exchanger cost.

Utility model content

The purpose of this utility model is to provide a kind of heat exchangers, and the heat converter structure is simple, and production cost is low, and And there is higher heat exchanger effectiveness.

The another object of the utility model is to provide a kind of gas-fired water heater, which is completed using heat exchanger Heat exchange works, and simple in structure, production cost is low, and has higher heat exchanger effectiveness.

The utility model provides a kind of technical solution：

In a first aspect, the utility model embodiment provides a kind of heat exchanger, it is applied to gas heater, the heat is handed over Parallel operation includes：Coil pipe part and heat exchange walls, the coil pipe part include indent runner bool and two wall surface connectors, two institutes The both ends that wall surface connector is connected to the indent runner bool are stated, the indent runner bool is to far from the heat The side recess of wall is exchanged, the coil pipe part is connect by two wall surface connectors with the heat exchange walls, and described A fluid course is formed between indent runner bool and the heat exchange walls, it is straight with the cold fluid for flowing through the fluid course It connects and is contacted with the heat exchange walls.

With reference to first aspect, in the first realization method of first aspect, the indent runner bool includes two Flow path portion and runner bending section, two flow path portions are connected to the both ends of the runner bending section, the flow path portion with it is described Wall surface connector connects.

With reference to first aspect and its above-mentioned realization method, in second of realization method of first aspect, the runner is curved The both ends of pars convoluta are arranged in angle, and described two flow path portions are connect with the both ends of the runner bending section, form a V-arrangement recess Chamber.

With reference to first aspect and its above-mentioned realization method, in the third realization method of first aspect, the flow path portion Extend in the same direction with runner bending section.

With reference to first aspect and its above-mentioned realization method, in the 4th kind of realization method of first aspect, the wall surface connects Fitting includes the connection bending section being connected with each other and interconnecting piece, and the connection bending section is connect with the indent runner elements, described Interconnecting piece is connect with the heat exchange walls.

With reference to first aspect and its above-mentioned realization method, in the 5th kind of realization method of first aspect, the connecting bending Curving of the pars convoluta to the separate heat exchange walls so that it is recessed that welding is formed between the interconnecting piece and the heat exchange walls Road, for filling solder, the heat exchange walls are connect with the interconnecting piece by the solder welding recessed channel.

With reference to first aspect and its above-mentioned realization method, in the 6th kind of realization method of first aspect, the interconnecting piece Continuously extend in the same direction with the connection bending section.

With reference to first aspect and its above-mentioned realization method, in the 7th kind of realization method of first aspect, the coil pipe part It is connected to the outer side surface of the heat exchange walls.

With reference to first aspect and its above-mentioned realization method, in the 8th kind of realization method of first aspect, the coil pipe part It is set around the heat exchanger.

Second aspect, the utility model embodiment provide gas-fired water heater, which includes inlet and outlet pipe and heat Exchanger, the heat exchanger include：Coil pipe part and heat exchange walls, the coil pipe part include indent runner bool and two walls Face connector, two wall surface connectors are connected to the both ends of the indent runner bool, and the indent runner is curved Bent part is recessed to the side far from the heat exchange walls, and the coil pipe part passes through two wall surface interconnecting pieces and the heat exchange Wall connects, and forms a fluid course between the indent runner bool and the heat exchange walls, to flow through the stream The cold fluid of body runner is directly contacted with the heat exchange walls, and the fluid course is connected to the inlet and outlet pipe.

Compared with prior art, the advantageous effect of heat exchanger and gas-fired water heater provided by the utility model is：

Indent runner bool is recessed to the side far from heat exchange walls, and coil pipe part is handed over by two wall surface interconnecting pieces and heat Wall connection is changed, and forms a fluid course between indent runner bool and heat exchange walls, to flow through the cold of fluid course Fluid is directly contacted with heat exchange walls, and heat exchange approach is short, and thermal resistance is small, has higher heat exchanger effectiveness.

Description of the drawings

It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described.It should be appreciated that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as.For those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.

Fig. 1 is the first view of the structure for the heat exchanger that the first embodiment of the utility model provides；

Fig. 2 is the second view of the structure for the heat exchanger that the first embodiment of the utility model provides；

The heat exchanger that Fig. 3 provides for the first embodiment of the utility model uses schematic diagram；

Fig. 4 is the composition frame chart for the gas-fired water heater that the second embodiment of the utility model provides.

Icon：50- inlet and outlet pipes；170- welds recessed channel；190- fluid courses；100- heat exchangers；110- coil pipe parts； 111- indent runner bools；1111- runners bending section；1113- flow path portions；113- wall surface connectors；1131- connections are bent Portion；1133- interconnecting pieces；130- heat exchange walls；150- solders；160- first fluids；90- gas-fired water heaters.

Specific implementation mode

It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, it is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.

Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all Belong to the range of the utility model protection.

It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.

In the description of the present invention, it should be understood that term "upper", "lower", "inner", "outside", "left", "right" etc. The orientation or positional relationship of instruction be based on the orientation or positional relationship shown in the drawings or the utility model product use when The orientation or positional relationship that the orientation or positional relationship or those skilled in the art usually put usually understand, be only for Described convenient for description the utility model and simplifying, do not indicate or imply the indicated equipment or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.

In addition, term " first ", " second " etc. are only used for distinguishing description, it is not understood to indicate or imply relatively important Property.

In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, " setting ", Terms such as " connections " shall be understood in a broad sense, for example, " connection " may be a fixed connection, may be a detachable connection, or one Ground connects；It can be mechanical connection, can also be electrical connection；Can be directly connected to, can also by between intermediary in succession It connects, can be the connection inside two elements.For the ordinary skill in the art, can understand as the case may be The concrete meaning of above-mentioned term in the present invention.

Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail.First embodiment：

Please refer to Fig. 1, Fig. 1 is the first of the structure for the heat exchanger 100 that the first embodiment of the utility model provides to regard Figure.

The preferred embodiment of the utility model provides a kind of heat exchanger 100, is applied to water heater, for making heat exchange Heat in device 100 is transmitted to hot fluid to be added from hot fluid, which includes coil pipe part 110 and heat exchange walls 130.Coil pipe part 110 is connect with heat exchange walls 130, and forms fluid course 190, and heat can be carried out inside and outside the heat exchanger 100 It exchanges, for existing heat exchange approach, heat is only realized by coil pipe part 110 and heat exchange walls 130 in fluid stream Heat exchange outside 190 internal flow of road and fluid course 190, the approach of heat exchange is shorter, reduces the way of heat exchange Thermal resistance on diameter improves heat exchanger heat exchange efficiency, while also saving the material of heat exchanger 100, reduces heat exchanger 100 cost.The heat exchanger 100 applies also for the wind turbine of the evaporator and condenser, central air conditioner system of air-conditioning system The equipment that coil pipe etc. needs heat exchange function.

The present embodiment will be illustrated by taking the heat exchanger 100 that heat exchanger 100 is applied on gas heater as an example, Concrete structure, principle and its effect of heat exchanger 100 will be specifically introduced below.

Please refer to Fig. 2, Fig. 2 is the second of the structure for the heat exchanger 100 that the first embodiment of the utility model provides to regard Figure.

Coil pipe part 110 includes indent runner bool 111 and two wall surface connectors 113, and two wall surface connectors 113 divide It is not connected to the both ends of indent runner bool 111, indent runner bool 111 is recessed to the side far from heat exchange walls 130, Coil pipe part 110 is connect by two wall surface interconnecting pieces 1133 with heat exchange walls 130, and in indent runner bool 111 and Re Jiao Change between wall 130 and form a fluid course 190, with flow through the hot fluid to be added of fluid course 190 directly with heat exchange walls 130 Contact.

Indent runner bool 111 includes two flow path portions 1113 and runner bending section 1111, flow path portion 1113 and wall surface Connector 113 connects, and the both ends of runner bending section 1111 are arranged in angle, two flow path portions 1113 and runner bending section 1111 Both ends connect, and form a V-arrangement caveli, flow path portion 1113 and runner bending section 1111 extend in the same direction.

In the present embodiment, the fluid stream of the triangle formd between indent runner bool 111 and heat exchange walls 130 The processing technology in road 190, the indent runner bool 111 is simple, and easy to process, production cost is low, also, relative to existing Pipe is welded in for the heat exchanger 100 of heat exchange walls 130, in the case of the area of section of same fluid runner 190, The contact area bigger of fluid and heat exchange walls 130 in heat exchanger 100 provided in this embodiment increases heat exchange effect Rate.

It is understood that in other embodiments, indent runner bool 111 can also be arc-shaped, setback shape or Corrugated protrusion avoids causing to connect unstable situation because of thermal deformation to adapt to the thermal deformation of different materials.

It should be noted that flow path portion 1113 and runner bending section 1111 extend in the same direction, flow path portion 1113 and stream Road bending section 1111 being set on coil pipe part 110 with straight line, flow path portion 1113 and runner bending section 1111 can also be spaced Straight line be set on coil pipe part 110, or the bending at interval is set on coil pipe part 110, in addition, runner bending section 1111 both ends can also be that different angles are set on coil pipe part 110 in angle setting, form corrugated runner inner wall, To increase the contact area of fluid and heat exchanger 100 in heat exchanger 100, increase by 190 length of fluid course.

Please continue to refer to Fig. 2, the both ends of coil pipe part 110 are both provided with wall surface connector 113, and wall surface connector 113 includes The connection bending section 1131 of interconnection and interconnecting piece 1133, connection bending section 1131 are connect with indent runner elements, interconnecting piece 1133 connect with heat exchange walls 130.

Further, to the curving far from heat exchange walls 130, the both ends of coil pipe part 110 are equal for connection bending section 1131 Be provided with and connect bending section 1131 connection interconnecting piece 1133, on the one hand, to make coil pipe part 110 with heat exchange walls 130 When connection so that interconnecting piece 1133 is parallel with heat exchange walls 130 so that coil pipe part 110 be bonded with heat exchange walls 130 it is tighter Close, to improve quality of connection, on the other hand, interconnecting piece 1133 can also be because connection bending section 1131 be to far from heat exchange walls 130 Curving and make to form angle between interconnecting piece 1133 and heat exchange walls 130, connect in coil pipe part 110 and heat exchange walls 130 When connecing, wall surface connector 113 is supported, with certain tension when it being made to be fitted and connected with heat exchange walls 130, increases the steady of connection Solidity.

Further, curving of the connection bending section 1131 to separate heat exchange walls 130 so that interconnecting piece 1133 and heat Recessed channel 170 is welded in formation between exchanging wall 130, and solder 150 is filled in welding recessed channel 170 to weld wall surface connector 113 With heat exchange walls 130, welding recessed channel 170, to facilitate the progress of welding job, mitigates Welder for housing solder 150 Make difficulty, improves welding quality.

Further, interconnecting piece 1133 and connection bending section 1131 continuously extend in the same direction, it is to be understood that Interconnecting piece 1133 and connection bending section 1131 can continuous straight line the both ends for being set to coil pipe part 110, processing technology letter Single, production cost is low, can only be formed by way of bending, in other embodiments, interconnecting piece 1133 and connection bending section 1131 straight lines that can also be spaced are set to coil pipe part 110, become in temperature to avoid in heat exchange walls 130 or coil pipe part 110 The case where dissolving phenomenon of now expanding with heat and contract with cold, and connection caused to fall off, in addition, interconnecting piece 1133 and connection bending section 1131 can also The continuous of bending is set to coil pipe part 110, to adapt to the different application scenarios of heat exchanger 100.

In addition, coil pipe part 110 is connected to the outside of heat exchange walls 130, in order to produce and process and quality examination, operation Personnel are attached coil pipe part 110 and heat exchange walls 130 outside heat exchanger 100, without inside heat exchanger 100 into Row operation.

In the present embodiment, coil pipe part 110 is set around heat exchange walls 130, in the application of gas heater, coil pipe part 110 are set around a circle on heat exchanger 100, can reduce the heat losses of heat exchanger 100, while original three can be replaced to enclose Being set around the heat exchange efficiency of the heat exchange amount of the round coil of heat exchanger 100 reduces production cost, and reduces heat exchange The size of device 100.

Also, the coil pipe part 110 is made of metal material, such as the metal materials such as cast iron, stainless steel, copper, especially without Oxygen copper, because the working environment very severe of the heat exchanger 100 of gas heater, constantly bear thermal shock, so to heat The requirement of the metal material of exchanger 100 is also higher, and copper is during general smelt, can contain it is aerobic, and containing aerobic copper, Under thermal shock, it is easy to embrittlement, so, the heat exchanger 100 of gas heater must use oxygen-free copper, with preferable Ductility, be not easy embrittlement under constantly thermal shock, extend the service life of heat exchanger 100.

Fig. 3 is please referred to, Fig. 3 is the use schematic diagram for the heat exchanger 100 that the first embodiment of the utility model provides.

Gas heater in use, heat be transferred to by 130 inner wall of heat exchange walls it is first-class in fluid course 190 In body 160, heat exchange approach in this is only heat exchange walls 130, be not round pipe fitting, solder heat exchange walls 130 like that compared with Long heat exchange approach, also, in the case of 190 sectional area of fluid course of same size, the heat exchange of heat exchanger 100 Area is welded in 130 bigger of heat exchange walls relative to round pipe fitting, greatly improves heat exchanger effectiveness.

The operation principle of heat exchanger 100 that first embodiment provides is：

Indent runner bool 111 is recessed to the side far from heat exchange walls 130, and heat exchanger 100 passes through coil pipe part 110 Interconnecting piece 1133 be welded to connect with heat exchange walls 130, to form fluid course 190, heat is only being existed by heat exchange walls 130 The heat exchanger effectiveness of the inside and outside transmission of fluid course 190, the heat exchanger 100 is high.

In summary：

Heat exchanger 100 provided by the utility model, the heat exchanger 100 is simple in structure, and production cost is low, and has Higher heat exchanger effectiveness.

Second embodiment：

Fig. 4 is please referred to, Fig. 4 is the composition frame chart for the gas-fired water heater 90 that the second embodiment of the utility model provides.

The gas-fired water heater 90 that second embodiment provides includes the heat exchanger 100 that first embodiment provides, and is also wrapped Heat exchanger 100 and inlet and outlet pipe 50 are included, heat exchanger 100 is connected to fluid course 190, and fluid enters inlet and outlet pipe 50 Heat exchange is carried out through heat exchanger 100, then is flowed out by inlet and outlet pipe 50, to complete heating process.

The operation principle of gas-fired water heater 90 that second embodiment provides is：

The first fluid 160 of gas-fired water heater 90 enters inlet and outlet pipe 50, and heat friendship is carried out through heat exchanger 100 It changes, indent runner bool 111 is recessed to the side far from heat exchange walls 130, the company that heat exchanger 100 passes through coil pipe part 110 Socket part 1133 is welded to connect with heat exchange walls 130, and to form fluid course 190, first fluid 160 passes through fluid course 190, heat Measure only by heat exchange walls 130 fluid course 190 inside and outside transmission, with to first fluid 160 heat, and then again by into Outlet pipeline 50 flows out.

In summary：

A kind of gas-fired water heater 90 provided by the utility model, the device are handed over using heat exchanger 100 to complete heat It changes jobs, simple in structure, production cost is low, and has higher heat exchanger effectiveness.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, in the absence of conflict, the feature in the above embodiments can be combined with each other, this practicality is new Type can have various modifications and variations.Within the spirit and principle of the utility model, any modification made by is equally replaced It changes, improve, should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of heat exchanger, it is applied to gas heater, which is characterized in that the heat exchanger includes：Coil pipe part and heat are handed over Wall is changed, the coil pipe part includes indent runner bool and two wall surface connectors, and two wall surface connectors are separately connected In the both ends of the indent runner bool, the indent runner bool is recessed to the side far from the heat exchange walls, institute It states coil pipe part to connect with the heat exchange walls by two wall surface connectors, and in the indent runner bool and described A fluid course is formed between heat exchange walls, the cold fluid to flow through the fluid course directly connects with the heat exchange walls It touches.

2. heat exchanger according to claim 1, which is characterized in that the indent runner bool includes runner bending section With two flow path portions, two flow path portions are connected to the both ends of the runner bending section, and two flow path portions are respectively with two A wall surface connector connection.

3. heat exchanger according to claim 2, which is characterized in that the both ends of the runner bending section are arranged in angle, Described two flow path portions are connect with the both ends of the runner bending section, form a V-arrangement caveli.

4. heat exchanger according to claim 3, which is characterized in that the flow path portion and runner bending section are in the same direction Extend.

5. heat exchanger according to claim 1, which is characterized in that the wall surface connector includes the connection being connected with each other Bending section and interconnecting piece, the connection bending section are connect with the indent runner elements, and the interconnecting piece connects with the heat exchange walls It connects.

6. heat exchanger according to claim 5, which is characterized in that the connection bending section is to far from the heat exchange walls Curving so that between the interconnecting piece and the heat exchange walls formed welding recessed channel, the welding recessed channel be used for fill Solder, the heat exchange walls are connect with the interconnecting piece by the solder.

7. heat exchanger according to claim 6, which is characterized in that the interconnecting piece and the connection bending section are continuously Extend in the same direction.

8. heat exchanger according to claim 1, which is characterized in that the coil pipe part is connected to the outer of the heat exchange walls Side wall surface.

9. heat exchanger according to claim 1, which is characterized in that the coil pipe part is set around the heat exchange walls.

10. a kind of gas-fired water heater, which is characterized in that including inlet and outlet pipe and such as any one of claim 1-9 institutes The heat exchanger stated, the heat exchanger are connected to the fluid course.